diff --git a/os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.c b/os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.c
index 0d07f056e..9a2d22bb3 100644
--- a/os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.c
+++ b/os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.c
@@ -651,10 +651,12 @@ void mac_lld_release_receive_descriptor(MACReceiveDescriptor *rdp) {
  * @notapi
  */
 bool mac_lld_poll_link_status(MACDriver *macp) {
-  uint32_t maccr, bmsr, bmcr;
+  uint32_t maccr;
 
   maccr = ETH->MACCR;
-
+ /* Fixed link connection defined in board.h.*/
+#if (!STM32_MAC_PHY_FIXED_LINK)
+  uint32_t bmsr, bmcr;
   /* PHY CR and SR registers read.*/
   (void)mii_read(macp, MII_BMSR);
   bmsr = mii_read(macp, MII_BMSR);
@@ -701,6 +703,14 @@ bool mac_lld_poll_link_status(MACDriver *macp) {
     else
       maccr &= ~ETH_MACCR_DM;
   }
+/* Fixed link type defined in board.h.*/
+#elif STM32_MAC_PHY_FIXED_LINK_TYPE == LINK_100_FULLDUPLEX
+  maccr |= ETH_MACCR_FES;
+  maccr |= ETH_MACCR_DM;
+#elif STM32_MAC_PHY_FIXED_LINK_TYPE == LINK_10_FULLDUPLEX
+  maccr &= ~ETH_MACCR_FES;
+  maccr |= ETH_MACCR_DM;
+#endif 
 
   /* Changes the mode in the MAC.*/
   ETH->MACCR = maccr;
diff --git a/os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.h b/os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.h
index c7cb35eee..d7060ba45 100644
--- a/os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.h
+++ b/os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.h
@@ -129,6 +129,14 @@
 #define STM32_TDES3_FL              0x00007FFF
 /** @} */
 
+/**
+ * @name    Fixed link types
+ * @{
+ */
+#define LINK_100_FULLDUPLEX         0x00
+#define LINK_10_FULLDUPLEX          0x01
+/** @} */
+
 /*===========================================================================*/
 /* Driver pre-compile time settings.                                         */
 /*===========================================================================*/
@@ -200,6 +208,20 @@
 #if !defined(STM32_MAC_IP_CHECKSUM_OFFLOAD) || defined(__DOXYGEN__)
 #define STM32_MAC_IP_CHECKSUM_OFFLOAD       0
 #endif
+
+/**
+ * @brief   Fixed link connection
+ */
+#if !defined(STM32_MAC_PHY_FIXED_LINK) || defined(__DOXYGEN__)
+#define STM32_MAC_PHY_FIXED_LINK FALSE
+#endif
+
+/**
+ * @brief   Fixed link connection type
+ */
+#if !defined(STM32_MAC_PHY_FIXED_LINK_TYPE) || defined(__DOXYGEN__)
+#define STM32_MAC_PHY_FIXED_LINK_TYPE LINK_100_FULLDUPLEX
+#endif
 /** @} */
 
 /*===========================================================================*/